(50-100) 1/4"-20 x 1-1/8" Tee Thumb Screws Red & Black Victory Cross Country 4 - Stainless Steel Lock

4 - Stainless Steel Lock Washers

You can buy cheaper O-rings

On some year models

Includes Easy to follow installation instructions

That doesn’t necessarily mean it is allergy-proof

(50-100) 1/4"-20 x 1-1/8" Tee Thumb Screws Red & Black Victory Cross Country 4 - Stainless Steel LockPictures are for reference only, may not be the correct per package showing These Tee Wing Plastic Knobs are ideal for applications where frequent access is required and designed for controlled adjustment and where tightness needs to be adjusted regularly. Studs are 18 8 Stainless Steel anti rust and anti corrosion, strong and durable. The most common stainless steel for general hardware use. (Black Anodized Bolts will Rust)